Interactive cardiovascular and thoracic surgery · 2015
Endobronchial ultrasound-guided transbronchial needle aspiration is a sensitive method to evaluate patients who should not undergo pulmonary metastasectomy†.
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Eckardt Jens, Licht Peter Bjørn
Аннотация
OBJECTIVES: Pulmonary metastasectomy is considered an effective treatment in selected patients with extrapulmonary cancer and oligometastatic disease. We know that the presence of mediastinal lymph node metastases reduces survival significantly, but the mediastinum is rarely evaluated before metastasectomy in these patients. We prospectively evaluated how endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) could identify metastases to the mediastinal lymph nodes in patients referred for pulmonary metastasectomy.
METHODS: All patients with extrapulmonary cancer and oligometastatic disease confined to the lungs on positron emission tomography-computed tomography, and who were considered eligible for pulmonary metastasectomy, routinely underwent EBUS-TBNA of the mediastinal lymph nodes. If EBUS-TBNA did not reveal malignant spread, the patient subsequently underwent pulmonary metastasectomy with systematic sampling of mediastinal lymph nodes for histological evaluation.
RESULTS: One hundred and three eligible patients were referred for EBUS-TBNA during a 4-year period. The primary cancers were located in the colon/rectum (n = 64), kidney (n = 16) and other sites (n = 23). EBUS-TBNA sampled 248 lymph nodes and adequate cytology was obtained in 93 patients (90%). EBUS-TBNA found lymph node metastases in 17 patients (16.5%) and during subsequent pulmonary metastasectomy in the remaining 86 patients 1 (1.0%) had a lymph node metastasis. The sensitivity, specificity, NPV and PPV of EBUS-TBNA for diagnosis of mediastinal lymph node metastasis were 94.4, 100, 98.8 and 100%, respectively.
CONCLUSIONS: EBUS-TBNA is a sensitive minimally invasive modality for evaluation of mediastinal lymph node metastases in patients with oligometastatic pulmonary disease. It allows surgeons to select patients who will not benefit from pulmonary metastasectomy.
METHODS: All patients with extrapulmonary cancer and oligometastatic disease confined to the lungs on positron emission tomography-computed tomography, and who were considered eligible for pulmonary metastasectomy, routinely underwent EBUS-TBNA of the mediastinal lymph nodes. If EBUS-TBNA did not reveal malignant spread, the patient subsequently underwent pulmonary metastasectomy with systematic sampling of mediastinal lymph nodes for histological evaluation.
RESULTS: One hundred and three eligible patients were referred for EBUS-TBNA during a 4-year period. The primary cancers were located in the colon/rectum (n = 64), kidney (n = 16) and other sites (n = 23). EBUS-TBNA sampled 248 lymph nodes and adequate cytology was obtained in 93 patients (90%). EBUS-TBNA found lymph node metastases in 17 patients (16.5%) and during subsequent pulmonary metastasectomy in the remaining 86 patients 1 (1.0%) had a lymph node metastasis. The sensitivity, specificity, NPV and PPV of EBUS-TBNA for diagnosis of mediastinal lymph node metastasis were 94.4, 100, 98.8 and 100%, respectively.
CONCLUSIONS: EBUS-TBNA is a sensitive minimally invasive modality for evaluation of mediastinal lymph node metastases in patients with oligometastatic pulmonary disease. It allows surgeons to select patients who will not benefit from pulmonary metastasectomy.